原子能科学技术2016，Vol.50Issue(3)：410-417,8.DOI:10.7538/yzk.2016.50.03.0410
偕胺肟基改性碳纳米管对铀的吸附性能研究
Removal of Uranium by Adsorption of Amidoxime Group Modified Carbon Nanotubes
摘要
Abstract
AO‐MWNTs were obtained through multi‐walled carbon nanotubes (MWNTs ) modified by amidoxime group ,and characterized by transmission electron microscope (TEM) and fourier transform infrared spectrometer (FTIR) .The adsorption experi‐ments of uranium on the raw‐MWNTs and AO‐MWNTs were studied under different conditions .The results show that the adsorption capacities of uranium on raw‐MWNTs and AO‐MWNTs primarily increase and then decrease over the range of pH =2‐8 ,and reach the maximum at pH=5 .With the increase of initial concentration of uranium ,the adsorption capacities of uranium on the two materials gradually increase . When the initial concentration of uranium is 10 mg/L ,the adsorption of uranium on AO‐MWNTs balances after oscillating 30 min ,and the adsorption capacity reaches 18.93 mg/g ,while the raw‐MWNTs tend to be stable after 60 min , and the adsorption capacity is 9.59 mg/g .The adsorption capacity of uranium on AO‐MWNTs can be described by Langmuir and Freundlich models ,and the theoretical maximum adsorption capacity can reach 106.38 mg/g .关键词
多壁碳纳米管/偕胺肟基/铀/吸附Key words
multi-walled carbon nanotube/amidoxime group/uranium/adsorption分类
化学化工引用本文复制引用
谢磊,唐文玲,谢水波,王劲松,王慧娟,王赛..偕胺肟基改性碳纳米管对铀的吸附性能研究[J].原子能科学技术,2016,50(3):410-417,8.基金项目
国家自然科学基金资助项目（11275095）；湖南省高校重点实验室开放基金资助项目（11K055）；湖南省环境保护厅科技发展计划资助项目 （）
